A quoted word that isn't a file name; split parts with two digits

From the re-index's single-file releases:
- A quoted text without an extension ("My \"Official\" remaining set's
  of Inna … 025.jpg [25/74]", "… lr140x16.jpg ( file 046 of 922)
  \"yEnc\"", "\"Dr. Lust\" - … - [12/21] - Ed_DRL_VDR_LM.part09.rar") was
  the file name, the real one stayed in the subject: every file a release.
  It gives way to a file name with an extension beside it
  (nameBesideQuotes); random quoted names with none beside keep theirs.
- Split parts numbered with two digits ("Admiral.EP05.2008.720p.Rus.
  HDCLUB.mkv.21", a.b.movies.divx.russian) share their stem, as .001.
Both implementations; tests; fixtures identical.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

lib/headers/index.ts

@@ -1,3 +1,3 @@
-export { parseSubject, unquotedName, type ParsedSubject } from './subject.js'
+export { parseSubject, unquotedName, nameBesideQuotes, type ParsedSubject } from './subject.js'
 export { fileKey, weakFileKey, counterFileKey, looksLikeFilename } from './file_key.js'
 export { segmentFromHeader, type IngestSegment, type OverviewHeader, type IdentityCache } from './segment.js'

lib/headers/subject.ts

@@ -30,6 +30,17 @@ const EXTENSION = /[^.\s]\.[A-Za-z0-9]{2,4}$/
  * (01/24)`). Null when no file name is found: the subject stays obfuscated.
  * Words are split on spaces only (both implementations alike).
  */
+/**
+ * The file name of a subject whose quoted text has no extension ("My
+ * \"Official\" remaining set's of Inna … 025.jpg", "\"Dr. Lust\" - … - Ed_DRL_VDR_LM.part09.rar"):
+ * a name with one elsewhere, else null (random quoted names keep theirs).
+ */
+export function nameBesideQuotes(quoted: string, beforeCounter: string): string | null {
+  if (EXTENSION.test(quoted)) return null
+  const name = unquotedName(beforeCounter.replace(/"[^"]*"/g, ' '))
+  return name && EXTENSION.test(name) ? name : null
+}
+
 export function unquotedName(beforeCounter: string): string | null {
   let text = beforeCounter.trimEnd()
   if (/yenc$/i.test(text)) text = text.slice(0, -4).trimEnd()
@@ -78,7 +89,8 @@ export function parseSubject(subject: string): ParsedSubject | null {
     if (match.index > nameEnd) counter = match
   }
   if (!counter) return null
-  const name = nameStart !== -1 ? subject.slice(nameStart + 1, nameEnd) : unquotedName(subject.slice(0, counter.index))
+  const quoted = nameStart !== -1 ? subject.slice(nameStart + 1, nameEnd) : null
+  const name = quoted !== null ? (nameBesideQuotes(quoted, subject.slice(0, counter.index)) ?? quoted) : unquotedName(subject.slice(0, counter.index))
   if (!name) return null
 
   const segment = Number.parseInt(counter[1], 10)